SBOS743C July   2015  – August 2026 INA226-Q1

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
    6. 5.6 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 Basic ADC Functions
        1. 6.3.1.1 Power Calculation
        2. 6.3.1.2 Alert Pin
    4. 6.4 Device Functional Modes
      1. 6.4.1 Averaging and Conversion Time Considerations
      2. 6.4.2 Filtering and Input Considerations
    5. 6.5 Programming
      1. 6.5.1 Programming the Calibration Register
      2. 6.5.2 Programming the Power Measurement Engine
        1. 6.5.2.1 Calibration Register and Scaling
      3. 6.5.3 Simple Current Shunt Monitor Usage (No Programming Necessary)
      4. 6.5.4 Default Settings
      5. 6.5.5 Bus Overview
        1. 6.5.5.1 Serial Bus Address
        2. 6.5.5.2 Serial Interface
        3. 6.5.5.3 Writing to and Reading From the INA226-Q1
          1. 6.5.5.3.1 High-Speed I2C Mode
        4. 6.5.5.4 SMBus Alert Response
  8. 7 Registers
    1. 7.1 Register Maps
      1. 7.1.1  Configuration Register (00h) (Read/Write)
      2. 7.1.2  Shunt Voltage Register (01h) (Read-Only)
      3. 7.1.3  Bus Voltage Register (02h) (Read-Only)
      4. 7.1.4  Power Register (03h) (Read-Only)
      5. 7.1.5  Current Register (04h) (Read-Only)
      6. 7.1.6  Calibration Register (05h) (Read/Write)
      7. 7.1.7  Mask/Enable Register (06h) (Read/Write)
      8. 7.1.8  Alert Limit Register (07h) (Read/Write)
      9. 7.1.9  Manufacturer ID Register (FEh) (Read-Only)
      10. 7.1.10 Die ID Register (FFh) (Read-Only)
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 High-Side Sensing Circuit Application
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curves
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Device Support
      1. 9.1.1 Development Support
    2. 9.2 Receiving Notification of Documentation Updates
    3. 9.3 Support Resources
    4. 9.4 Trademarks
    5. 9.5 Electrostatic Discharge Caution
    6. 9.6 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

5.6 Typical Characteristics

At TA = 25°C, VVS = 3.3V, VIN+ = 12V, VSENSE = (VIN+ – VIN–) = 0mV and VVBUS = 12V, unless otherwise noted.

INA226-Q1 Frequency Response
Figure 5-1 Frequency Response
INA226-Q1 Shunt Input Offset Voltage vs Temperature
Figure 5-3 Shunt Input Offset Voltage vs Temperature
INA226-Q1 Shunt Input Gain Error Production Distribution
Figure 5-5 Shunt Input Gain Error Production Distribution
INA226-Q1 Shunt Input Gain Error vs Common-Mode Voltage
Figure 5-7 Shunt Input Gain Error vs Common-Mode Voltage
INA226-Q1 Bus Input Offset Voltage vs Temperature
Figure 5-9 Bus Input Offset Voltage vs Temperature
INA226-Q1 Bus Input Gain Error vs Temperature
Figure 5-11 Bus Input Gain Error vs Temperature
INA226-Q1 Input Bias Current vs Temperature
Figure 5-13 Input Bias Current vs Temperature
INA226-Q1 Active IQ vs Temperature
Figure 5-15 Active IQ vs Temperature
INA226-Q1 Active IQ vs I2C Clock Frequency
Figure 5-17 Active IQ vs I2C Clock Frequency
INA226-Q1 Shunt Input Offset Voltage Production Distribution
Figure 5-2 Shunt Input Offset Voltage Production Distribution
INA226-Q1 Shunt Input Common-Mode Rejection Ratio vs Temperature
Figure 5-4 Shunt Input Common-Mode Rejection Ratio vs Temperature
INA226-Q1 Shunt Input Gain Error vs Temperature
Figure 5-6 Shunt Input Gain Error vs Temperature
INA226-Q1 Bus Input Offset Voltage Production Distribution
Figure 5-8 Bus Input Offset Voltage Production Distribution
INA226-Q1 Bus Input Gain Error Production Distribution
Figure 5-10 Bus Input Gain Error Production Distribution
INA226-Q1 Input Bias Current vs Common-Mode Voltage
Figure 5-12 Input Bias Current vs Common-Mode Voltage
INA226-Q1 Input Bias Current vs Temperature, Shutdown
Figure 5-14 Input Bias Current vs Temperature, Shutdown
INA226-Q1 Shutdown IQ vs Temperature
Figure 5-16 Shutdown IQ vs Temperature
INA226-Q1 Shutdown IQ vs I2C Clock Frequency
Figure 5-18 Shutdown IQ vs I2C Clock Frequency